Automatic cage lock

• US 20030131802A1
• Filed: 10/21/2002
• Published: 07/17/2003
• Est. Priority Date: 10/19/2001
• Status: Active Grant

• Current Assignee: Lab Products, Inc.
• Original Assignee: Lab Products, Inc.
• Inventors: Irwin, Lynn, Murray, Dale, Gerringer, Rodney, Marston, William
• Granted Patent: US 6,912,973 B2
• Time in Patent Office: Days
• US Class Current: 119/455
• CPC Class Codes: A01K 1/031 Cages for laboratory animals; Cages for measuring metabolism of animals

Abstract

An automatic cage lock for securing various cages in a ventilated cage and rack system. The automatic cage lock facilitates the securing of a cage within the cage and rack system when a user slides the cage into the cage and rack system until the cage fully passes the locking finger component of the automatic cage lock. The cage may be easily unlocked by applying a small amount of pressure to the locking finger while simultaneously grasping the cage for removal. A color-coded indicator block may be disposed on the end of the lock assembly; the indicator block may be hidden by an indicator shield when the cage is securely docked in the rack. Conversely, the indicator block may be visually exposed when a cage is present in the rack but not fully docked within the rack. The indicator block provides a clear indication to a user as to the docking status of the cage.

Claims

1. An automatic cage lock for securing a cage within a cage and rack system, comprising:

a mounting bracket having a base and a support arm, said support arm having a docking channel defined therealong by at least one docking tab;

a rail guide disposed on said docking tab, said rail guide having an angular orientation and forming said docking channel;

a lock assembly slidably disposed within said docking channel for movement along said docking channel whereby adjustment of said automatic cage lock accommodates various cage sizes and lengths.

2. The automatic cage lock as recited by claim 1, wherein said support arm is substantially perpendicular to said base.

3. The automatic cage lock as recited by claim 1, further comprising:

a flexing lock member for securing the cage in the cage and rack system having a member deflector to automatically deflect said flexing lock member away from the cage during insertion of the cage into the cage and rack system.

4. The automatic cage lock as recited by claim 3, wherein said flexing lock member returns to its resting position after the cage is inserted into the cage and rack system which secures the cage.

5. The automatic cage lock as recited by claim 1, further comprising:

at least one mounting aperture in said base to facilitate mounting of said base to a surface;

a plurality of ratchet teeth disposed on said support arm to slidably fix said lock assembly to said support arm; and

an adjusting aperture formed in said support arm to accept a fastening member therethrough, said adjusting aperture being substantially elongated thereby allowing longitudinal adjusting of said cage lock.

6. The automatic cage lock as recited by claim 1, further comprising:

at least one mounting rail disposed on said lock assembly to slidably join said lock assembly to said support arm, said mounting rail being oriented transverse to said rail guide;

said lock assembly having a locking aperture formed therein, said locking aperture adjacently mated with said adjusting aperture and secured thereto with said fastening member to maintain the cage lock at an adjusted length; and

a plurality of engagement teeth disposed on said lock assembly, said engagement teeth adjacently aligned with said ratchet teeth to prevent undesirable sliding of said lock assembly within said docking channel.

7. The automatic cage lock as recited by claim 1, further comprising:

a locking finger formed at the end of said flexing lock member to lock the cage into the cage and rack system, said locking finger having a locking tab formed thereon to prevent the inadvertent release of the cage; and

a locking plate formed on said locking finger and disposed substantially perpendicular to said flexing lock member, said locking plate in communication with the cage to securely maintain the cage within the cage and rack system.

8. The automatic cage lock as recited by claim 1, further comprising:

an end stop disposed at the end of said flexing lock member to limit the distance that said flexing lock member can slide within said docking channel.

9. The automatic cage lock as recited by claim 1, further comprising:

a visual indicator arm unitarily formed with, and substantially parallel to, said flexing lock member, said visual indicator arm and said flexing lock member being partially separated and forming a separation channel therebetween which allows said flexing lock member to move independently from said visual indicator arm; and

an indicator housing formed at the end of said visual indicator arm, said indicator housing formed to enclose an indicator block therein, said indicator block being color coded.

10. The automatic cage lock as recited by claim 9, wherein said color-coded indicator block is removable and replaceable.

11. The automatic cage lock as recited by claim 1, further comprising:

an end block unitarily formed at the end of said flexing lock member and adjacent to said locking finger, said end block having an indicator shield to obscure said color-coded indicator block while said locking finger is in a resting position and exposing said color-coded indicator block when said locking finger is deflected by the cage in an unsecured state.

12. An automatic cage lock for securing a cage within a cage and rack system, comprising:

a mounting bracket having a base and a support arm, said support arm having a docking channel defined therealong by at least one docking tab;

a rail guide disposed on said docking tab, said rail guide having an angular orientation and forming said docking channel;

a lock assembly slidably disposed within said docking channel for movement along said docking channel whereby adjustment of said automatic cage lock accommodates various cage sizes and lengths; and

a flexing lock member for securing the cage in the cage and rack system having a member deflector to automatically deflect said flexing lock member away from the cage during insertion of the cage into the cage and rack system.

13. The automatic cage lock as recited by claim 12, wherein said support arm is substantially perpendicular to said base.

14. The automatic cage lock as recited by claim 12, wherein said flexing lock member returns to its resting position after the cage is inserted into the cage and rack system which secures the cage.

15. The automatic cage lock as recited by claim 12, further comprising:

at least one mounting aperture in said base to facilitate mounting of said base to a surface;

a plurality of ratchet teeth disposed on said support arm to slidably fix said lock assembly to said support arm; and

an adjusting aperture in said support arm to accept a fastening member therethrough, said adjusting aperture being substantially elongated which allows longitudinal adjusting of said cage lock.

16. The automatic cage lock as recited by claim 12, further comprising:

at least one mounting rail disposed on said lock assembly to slidably join said lock assembly to said support arm, said mounting rail oriented transverse to said rail guide;

said lock assembly having a locking aperture formed therein, said locking aperture adjacently mated with said adjusting aperture and secured thereto with said fastening member to maintain the cage lock at a predetermined adjusted length; and

a plurality of engagement teeth disposed on said lock assembly, said engagement teeth adjacently aligned with said ratchet teeth to prevent undesirable sliding of said lock assembly within said docking channel.

17. The automatic cage lock as recited by claim 12, further comprising:

a locking finger formed at the end of said flexing lock member to lock the cage into the cage and rack system, said locking finger having a locking tab formed thereon to prevent the inadvertent release of the cage; and

a locking plate formed on said locking finger and disposed substantially perpendicular to said flexing lock member, said locking plate in communication with the cage to securely maintain the cage within the cage and rack system

18. The automatic cage lock as recited by claim 12, further comprising:

an end stop disposed at the end of said flexing lock member to limit the distance that said flexing lock member can slide within said docking channel.

19. The automatic cage lock as recited by claim 12, further comprising:

a visual indicator arm unitarily formed with, and substantially parallel to, said flexing lock member, said visual indicator arm and said flexing lock member being partially separated and forming a separation channel therebetween which allows said flexing lock member to move independently from said visual indicator arm; and

an indicator housing formed at the end of said visual indicator arm, said indicator housing formed to enclose an indicator block therein, said indicator block being color coded.

20. The automatic cage lock as recited by claim 19, wherein said color-coded indicator block is removable and replaceable.

21. The automatic cage lock as recited by claim 12, further comprising:

an end block unitarily formed at the end of said flexing lock member and adjacent to said locking finger, said end block having an indicator shield to obscure said color-coded indicator block while said locking finger is in a resting position and exposing said color-coded indicator block when said locking finger is deflected by the cage in an unsecured state.

22. A system for automatically securing a cage into a cage and rack system, comprising:

a cage and rack system having a plurality of cage bins disposed therein;

a cage for housing an animal, said cage being selectively insertable within said cage bin; and

an automatic cage lock fixably mounted to said cage and rack system comprising a mounting bracket having a base and a support arm, said support arm having a docking channel defined therethrough by at least one docking tab;

wherein said automatic cage lock having a rail guide disposed on said docking tab, said rail guide having an angular orientation which forms said docking channel; and

wherein said automatic cage lock further having a lock assembly slidably disposed within said docking channel for selective movement through and along said docking channel, selective movement of said lock assembly which allows longitudinal adjustment of said cage lock to accommodate various cage sizes and lengths.

23. A system for automatically securing a cage into a cage and rack system as recited in claim 22, wherein said automatic cage lock has a flexing lock member for securing the cage in the cage and rack system and has a member deflector to automatically deflect said flexing lock member away from the cage during insertion of the cage into the cage and rack system.

24. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said support arm is substantially perpendicular to said base.

25. The system for automatically securing a cage into a cage and rack system as recited by claim 23 wherein said flexing lock member returns to its resting position after said cage is inserted into said cage and rack system which secures said cage.

26. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has at least one mounting aperture in said base to facilitate mounting of said base to a surface;

a plurality of ratchet teeth disposed on said support arm to slidably fix said lock assembly to said support arm; and

an adjusting aperture in said support arm to accept a fastening member therethrough, said adjusting aperture being substantially elongated which allows longitudinal adjusting of said cage lock.

27. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has at least one mounting rail disposed on said lock assembly to slidably join said lock assembly to said support arm, said mounting rail oriented transverse to said rail guide;

said lock assembly having a locking aperture formed therein, said locking aperture adjacently mated with said adjusting aperture and secured thereto with said fastening member to maintain the cage lock at a predetermined adjusted length; and

a plurality of engagement teeth disposed on said lock assembly, said engagement teeth adjacently aligned with said ratchet teeth to prevent undesirable sliding of said lock assembly within said docking channel.

28. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has a locking finger formed at the end of said flexing lock member to lock the cage into the cage and rack system, said locking finger having a locking tab formed thereon to prevent the inadvertent release of the cage;

and

a locking plate formed on said locking finger and disposed substantially perpendicular to said flexing lock member, said locking plate in communication with the cage to securely maintain the cage within the cage and rack system.

29. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has an end stop disposed at the end of said flexing lock member to limit the distance that said flexing lock member can slide within said docking channel.

30. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has a visual indicator arm unitarily formed with, and substantially parallel to, said flexing lock member, said visual indicator arm and said flexing lock member being partially separated and forming a separation channel therebetween which allows said flexing lock member to move independently from said visual indicator arm;

and

an indicator housing formed at the end of said visual indicator arm, said indicator housing formed to enclose an indicator block therein, said indicator block being color coded.

31. The system for automatically securing a cage into a cage and rack system as recited by claim 30, wherein said color-coded indicator block is removable and replaceable with a variety of colors to indicate various statuses.

32. The system for automatically securing a cage into a cage and rack system as recited by claim 22, wherein said automatic cage lock has an end block unitarily formed at the end of said flexing lock member and adjacent to said locking finger, said end block having an indicator shield to obscure said color-coded indicator block while said locking finger is in a resting position and exposing said color-coded indicator block when said locking finger is deflected by the cage in an unsecured state.

33. An automatic cage lock for securing a cage within a cage and rack system, comprising:

a mounting bracket having a base and a support arm, said support arm having a docking channel defined therethrough by at least one docking tab;

a rail guide disposed on said docking tab, said rail guide having an angular orientation and forming said docking channel;

a lock assembly slidably disposed within said docking channel for movement along said docking channel whereby adjustment of said automatic cage lock accommodates various cage sizes and lengths; and

means for securing said support arm to said lock assembly to prevent sliding therebetween.

34. The automatic cage lock as recited by claim 33, wherein said support arm is substantially perpendicular to said base.

35. The automatic cage lock as recited by claim 33, further comprising:

a flexing lock member for securing the cage in the cage and rack system having a member deflector to automatically deflect said flexing lock member away from the cage during insertion of the cage into the cage and rack system.

36. The automatic cage lock as recited by claim 35, wherein said flexing lock member returns to its resting position after the cage is inserted into the cage and rack system which secures the cage.

37. The automatic cage lock as recited by claim 33, further comprising:

means for mounting said base to a surface; and

means for fastening said support arm to said lock assembly to prevent sliding therebetween.

38. The automatic cage lock as recited by claim 33, further comprising:

a locking finger formed at the end of said flexing lock member to lock the cage into the cage and rack system, said locking finger having a locking tab formed thereon to prevent the inadvertent release of the cage; and

a locking plate formed on said locking finger and disposed substantially perpendicular to said flexing lock member, said locking plate in communication with the cage to securely maintain the cage within the cage and rack system.

39. The automatic cage lock as recited by claim 33, further comprising:

an end stop disposed at the end of said flexing lock member to limit the distance that said flexing lock member can slide within said docking channel.

40. The automatic cage lock as recited by claim 33, further comprising:

a visual indicator arm unitarily formed with, and substantially parallel to, said flexing lock member, said visual indicator arm and said flexing lock member being partially separated and forming a separation channel therebetween which allows said flexing lock member to move independently from said visual indicator arm; and

an indicator housing formed at the end of said visual indicator arm, said indicator housing formed to enclose an indicator block therein, said indicator block being color coded.

41. The automatic cage lock as recited by claim 40, wherein said color-coded indicator block is removable and replaceable.

42. The automatic cage lock as recited by claim 33, further comprising:

an end block unitarily formed at the end of said flexing lock member and adjacent to said locking finger, said end block having an indicator shield to obscure said color-coded indicator block while said locking finger is in a resting position and exposing said color-coded indicator block when said locking finger is deflected by the cage in an unsecured state.

43. An automatic cage lock for securing a cage within a cage and rack system, comprising a flexing lock member for securing the cage in the cage and rack system having a member deflector to automatically deflect said flexing lock member away from the cage during insertion of the cage into the cage and rack system.

44. The automatic cage lock as recited by claim 43, further comprising:

a visual indicator arm unitarily formed with, and substantially parallel to, said flexing lock member, said visual indicator arm and said flexing lock member being partially separated and forming a separation channel therebetween which allows said flexing lock member to move independently from said visual indicator arm; and

an indicator housing formed at the end of said visual indicator arm, said indicator housing formed to enclose an indicator block therein, said indicator block being color coded.